Apparatus for treating petroleum



May 19, 1931. c. P. DUBBs APPARATUS FOR TREATING PETROLEUM Original Filed Jan. 2, 1920 juf @arbo/7 ub' @5W/x Patented May 19, 51931 UNITED ASTATES CARBON P. DUBBS, OF WILMETTE, ILLINOIS, ASSIGNOB TO UNIVERSAL OIL PRODUCTS PATENT OFFICE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION F SOUTH DAKOTA APPARATUS FOR TREATING PETROLEUM -rigina application led January 2, 1920, Serial No. 348,789. Divided and this application led September i 6, 1921, Serial No. 498,888?. Renewed Hay 28, 1928.

l of petroleum treated are materially reduced.

The objects of the invention are to provide an apparatus wherein petroleum is subjected to heat and pressure, the vaporized portion beingpermanently separated from the un,

vaporized portion; to provide an apparatus whereby the generated vapors are subjected to progressive cooling and condensation; the heavier portions being revaporized While the lighter portions are collected separately; to provide an apparatus whereby only the raw oil fed-into the apparatus and the heavy condensate from the vapors 0enerated are subjected to the action ofla heat and pressure; to provide an apparatus whereby the petroleum to be treated is passed through the heating tubes but once, the vaporized portions beingsubjected to a partial condensation, and while undergoing said condensation, being mixed with, and the condensation materially assisted by a continuous supply of raw material, the mixture being automatically fed to the heating tubes Where it is subjected to a vfurther heat treatment.

The single figure in the drawing is a side elevation of the apparatus used in carrying out the process with parts broken away and shown'in section. Any arrangement of apparatus suitable for carrying out the princ1ple,

as set forthin my invention, may be used, as

- I claim the broad principles` set forth and claimed in this application.

Referring tothe drawing, A is the'furnace proper which is shown in the drawing pro- .vided for burning coal. It may be designed for burning natural gas, oil or any other fuel. A- l is a stack. The still in which the oil is heated and vaporized consists of tubes B2, which are connected to lower chambers B and B Vand an upper chamber B, the tubes B2 being4 positioned in the furnace A. The oil passes from chamber B up through the tubes atthe left of the bameinto the chamber B.

The oil passes from the .chamber B down the tubesat the right of the baille D3 into the chamber B. The vapors pass into the drum B. C is a va or line connecting the chamber B to the dep legmator D. Thls dephlegmator has an open compartment at the bottom marked D-l. The space above same is filled with broken material marked D-2 to act as a baille and yet leave sufficient voids for the vapors to percolate up through same. A space in the dephelgmator D is left above the broken material D-2. E is a vapor line connecting the dephlegmator1 D to the condensing coils E-1, located in the condensing box E-2 and which coil connects by line E-S the receiving tank F. G is a pipe connecting with source (not shown) for supplying the pump G-l with raw material. Gr-2 is the .discharge line from pump G-l into the top of dephlegmator D. H is a line extending from the bottom of?, the` dephlegmator D to the chamber B-ll -J is a drawo connecting with the drum B. K is a liquid level gauge having valves K-l condensing coil K-2, positioned in tank K-3, which is maintained full of Water. L are pressure gauges. M desi nate temperature gauges. N is pressure sa ety valve. P is a manhole opening. R, R1, R-Q and R-3 are valves. S is liquid level gauge. T is the as outlet from tank F and T--l is liquid drawoi from tank F. .U is a check valve and Z are supports for the different parts of the apparatus. y

he following illustrative run of the process may be given: Gas oil f 82 Baume gravity from, say, a Kansas field, is pumped from any suitable source of supply through line G and pump G--l to the upper end of the dephlegmator D, and passes through the broken up stone D2 and the perforated partition into the chamber D-V-l t ence through the line H into compartment B--lup through the tubes to the left of the baille into the chamber B. The oil circulates down through the vertical tubes to the right of the baiiie into chamber B and thence out through line J, controlledA through controlling the valves R, R--l and,

R'2. This process will convert 50 percent of said gas oil into 50 degree Baume gravity pressure distillate, 65 percent of which presmeans ,for taking o vapors from the upper sure distillate will be gasoline of 58 degree y Baum gravity and low boiling point.

I claim as my invention:

. 1. In an apparatus of the character ldescribed, the combination with a furnace, of Va plurality of vertical tubes connecting an upper drum, and a plurality of lower drums said tubes extending throu h the furnace, o

ajdephl ator connecte with the upper drum, sai dephlegmator havingka perforated plate therein or sup orting bro en material,

part of said dephleg'mator and condensing and collecting them, means for sup lying raw oil to the upper portion of the de legmator, and lfor forc'n the same ownwardly through said 'bro en material to assist the v condensation of the' vapors passing up through the dephlegmator and to preheat the oil, means for -passm reflux condensate and.

fresh oil from said ephlegmator to one of said lower drums, means for withdrawing residue from another of 'said lower drums,

. and means for maintaining the system under superatmospheric ressureu 2. In an oil crac ing apparatus, the combination with a plurality o vertical tubes'arranged in a cylindrical formation between an upper drum and aplurality of lower drums, said tubes extending through a furnace, of a dividing wall in said furnace for directing heating gases. longiutdinally of the tubes, a vapor outlet connected to said upper drum,

` and a dephlegmator Aconnected to the vapor outlet pipe from said upper drum, means for introducing raw oil to said de hlegw, ator, means for passing mixed raw oi an reux condensate from said dephleator to one of said lower drums, means for withdrawing residue from another of said lower an", condensin and collecting means connecte with sai dephlelmator, and means for .alntaining a regu ated pressure on the'sysm.

60N' P. 1S. 

